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GET YOUR GAS OUT OF GRASS:
BIOMASS!


By: Nicole and Zoe

This is a picture showing the cycle of how biomass is created [3.
This is a picture showing the cycle of how biomass is created [3.

Important Vocabulary Terms:


Biodiesel=A biofuel made from vegetable oil- relevant to biomass becasue biodiesel is another form of biomass fuel [1].

Gasification=
Process of converting solid or liquid biomass into a gas- relevant to biomass because it is a step in the transformation in converting biomass into gas [1].

These are all relevant to biomass because they are all several ways of capturing stored chemical energy in biomass:


Direct Combustion
= the burning of material by direct heat and is the simplest biomass technology and may be very economical if the biomass source is nearby [2].

Anaerobic Digestion=
converts organic matter to a mixture of methane, the major component of natural gas, and carbon dioxide. Biomass such as waterwaste (sewage), manure, or food processing waste, is mixed with water and fed into a digester tank without air [2].

Alcohol Fermentation
= fuel alcohol is produced by converting starch to sugar, fermenting the sugar to alcohol, then separating the alcohol water mixture by distillation. Feedstocks such as wheat, barley, potatoes, and waste paper, sawdust, and straw containing sugar, starch, or cellulose can be converted to alcohol by fermentation with yeast [2].

Landfill Gas= generated by the decay (anaerobic digestion) of buried garbage in landfills. When the organic waste decomposes, it generates gas consisting of approximately 50% methane, the major component of natural gas [2].


Congeneration= the simultaneous production of more than one form of energy using a single fuel and facility. Biomass cogeneration has more potential growth than biomass generation alone because cogeneration produces both heat and electricity [2].













The UK's largest biomass power plant
located in Lockerbie, Scotland



Steps to produce Biomass:
This is a picture showing the different types of Biomass [4
This is a picture showing the different types of Biomass [4


1. Plants capture sunlight and transform it into chemical energy using photosynthesis.

There are different ways to convert the chemical energy into heat, liquid, or electricity:

1st Method
2. Solid biomass fuels are burned in a boiler.
3. The heat produced turns water into steam.
4. The steam turns a turbine generator to produce electricity.

2nd Method
2. Biomass is gasified.
3. Then it's burned.


[4]






Conservation of Energy Throughout the Steps of Biomass:

In step 1, solar energy is being captured and transformed into chemical potential energy.

1st Method
In step 2, chemical potential energy in the biomass, is transformed into heat energy
In step 3, the heat energy is transferred to the water, which creates steam
In step 4, heat energy from the steam, transforms into kinetic energy, which is then transformed into electrical energy.


2nd Method
In step 2 and 3, the chemical potential energy from the biomass is transformed into heat energy.




This is a picture showing how biomass is tranformed into electrical energy [4.
This is a picture showing how biomass is tranformed into electrical energy [4.







Advantages of Biomass:
​Biomass is a renewable resource. Wheat and other agricultural cereals can be used as food, and the stems, or stalks can be used to make biomass. Another advantage is, that when biomass absorbs carbon dioxide during growth, the same carbon dioxide is emitted during combustion, therefore that means that biomass doesn't contribute as much to greenhouse gasses. Also biomass doesn't contribute to acid rain much because it produces small amounts of ash and sulfur [1].


Disadvantages of Biomass:
Biomass could contribute to global warming and particulary pollution if it is directly burned. Biomass is still an expensive source, both in terms of producing the biomass and converting it to alcohols. On a small scale, it is most likely a net loss of energy. Energy must be put in to grow the plant mass. Also, growing energy crops takes up a lot of land [5].









Article:
http://www.defense.gov/news/newsarticle.aspx?id=58528
This article is about how the government is trying to find new ways to replace the fuel for the government's aircrafts. Biofuel is the newest succesful way that they have been testing to replace the current fuel.










This is a video showing what biomass
is and how we can use it for energy.




[1] Momis, Neil. Biomass Power. Smart Apple Media: North Mankato, MN, 2007.

[2] Renewable Energy: Biomass. 1982. Young Peoples Trust for the Environment. 6 Apr. 2010. http://www.ypte.org.uk/environmental/renewable-energy-biomass-energy/94

[3] Hoexter, Michael. Electricity from Biomass. 3 Mar. 2010. Green Thoughts. 6 Apr. 2010. http://greenthoughts.us/ree/biomasselectricity|ttp://greenthoughts.us/ree/biomasselectricity

[4] Biomass. 18 Apr. 2002. Alternative Energy. 7 Apr. 2010. http://www.bluffton.edu/courses/TLC/MontelA/Montel/Alternative_Energy_Website/biomass.htm

[5] Biomass Advantanges and Disadvantages. 1998. Energy Matters. 5 Apr. 2010. http://library.thinkquest.org/20331/types/biomass/advant.html